Ship from Hongkong. This baby sleep bag's outer is made of pure cotton .Soft and comfortable for babies who are 1~2 years old. Keeps your baby from kicking blanket overnight and keeps warm. It is suit for spring and summer, temperature between 25-28 degree centigrade. Select the best fitness size according to your baby's height. Suitable for babies who are 1~2 years old. It is suit for spring and summer. Material : cotton. Keep baby from kicking blanket and keep warm. Soft and comfortable.